376 NOTICES OF BOOKS 



NOTICES OF BOOKS. 



Reports on the Botany of the Expeditions and Surveys for a Railroad 

 route from the Mississippi Riveu to the Pacific Ocean. War 



Department, U.S.A. : 



1. Route on the Porty -first Parallel of North Latitude, under the 

 command of Lieutenant E. G. Beckwith, Third Artillery ; by 

 John Torrey and Asa Gray. 4to, Eight Plates. {Published 



January 7, 1857.) 



2. Route near the Thirty-eighth and Thirty-ninth Parallels of North 

 Latitude, under the command ^ Captain J. W. Gunnison, Corps 

 of Topographical Engineers ; by John Torrey and Asa Gray. 

 4to, Two Plates. {Published January 7, 1857.) 



3. Route near the Thirty -second Parallel of North Latitude, under 

 the command of Captain John Pope, Corps of Topographical 

 Engineers ; by John Torrey and Asa Gray. 4to, Ten Plates. 



4. Route near the Thirty fifth Parallel, Explored by Lieutenant 

 A. W. Whipple, Topographical Engineers, in 1853 and 1854; 

 by John Torrey and Asa Gray. 4to, Ten Plates. 



5. Same Route as No. 4, Mosses and Hepatic^e ; by W. S. Sulli- 

 vant. 4to, Ten Plates. 



These five distinct articles include a portion of the valuable results 

 arising from the laudable conduct of the American Government, in 

 having required that scientific men should be attached to the Explora- 

 tions they have carried out with the view to the discovery of the best 

 railway route from the Mississippi River to the Pacific Ocean ; and the 

 materials of these botanical collections have been placed in the hands 

 of naturalists eminently calculated to do them justice. 



1. The first noticed on the above list describes the collections made 

 by James A. Snyder, in an expedition from Great Salt Lake, Utah ter- 

 ritory, directly west to the Sacramento Valley, in California, in the 

 months of May, June, and July, 1854 ; it contains only 59 species, of 

 which 9 are new. 



2. Plants collected by Mr. F. Creutzfeldt, on an expedition by the 

 way of the Kansas and Arkansas Rivers to Rent's Fort; thence by 

 Huerfano River and Sangre de Cristo Pass to the valley of San Luis ; 

 thence west from that valley to Grand and Green Rivers ; thence into 



